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3 years ago

How do I factor

{ +}^{3x" align="absmiddle" class="latex-formula">

Mathematics

1 answer:

Rina8888 [55]3 years ago

7 0

Easy.

2x + 3x

2x + 3x

2x ( 1 + 3x / 2x )

2x ( 1 + 1.5 )

2x ( 3 )

6x

or

2x ( 3 )

or

3x ( 2 )

That's it.

Hope helps ...........

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If the atomic number is 15 how many protons will it have?

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It will have 15 protons because the atomic number will always equal the number of protons and vice versa

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3 years ago

Find the mean absolute deviation (MAD) of the data set of 0.4, 0.2, 0.4, 0.6

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Answer:

Assuming data is from population, 0.1

Step-by-step explanation:

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2 years ago

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3 years ago

The Insure.com website reports that the mean annual premium for automobile insurance in the United States was $1,503 in March 20

stira [4]

Answer:

a) Option A)

$H_{0}: \mu \geq 1503\\H_A: \mu < 1503$

b) Point estimate of difference = -78

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $1,503

Sample mean, $\bar{x}$ = $1,425

Sample size, n = 25

Sample standard deviation, s = $160

We have to carry a hypothesis test that the mean annual premium in Pennsylvania is lower than the national mean annual premium.

a) First, we design the null and the alternate hypothesis

$H_{0}: \mu \geq 1503\text{ dollars}\\H_A: \mu < 1503\text{ dollars}$

b) Point estimate of the difference between the mean annual premium in Pennsylvania and the national mean

Point estimate of difference =

Mean annual premium in Pennsylvania - National mean

$\text{Point estimate} = \bar{x} - \mu = 1425 - 1503 = -78$

Thus,

Point estimate of difference = -78

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3 years ago

3x + y = 14<br> y = 5<br> Solve the system of equations

lorasvet [3.4K]

Answer:

X=3, y=5

Step-by-step explanation:

3x + y = 14 equation 1

y=5 equation 2

3x + 5 = 14. substitute value of y from equation 2 into equation 1

3x=9

x-3

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3 years ago